-- @owner: @kyeleze
-- @date: 2022/5/16
-- @testpoint: 调用自定义类型转换关系，隐含调用插入数据到哈希分区表成功

--step1:建立自定义类型转换函数;expect:创建函数成功
create or replace function timezone_to_secondsinteger
(
    in time with time zone
)
returns integer
as
$$
declare
seconds integer;
begin
select (
extract(hour from $1)::integer * 3600
+ extract(minute from $1)::integer * 60
+ extract(seconds from $1)::integer* 1) into seconds;
return seconds;
end;
$$ language plpgsql;
/

--step2:创建转换关系;expect:创建转换关系成功
drop cast if exists (time with time zone as integer) cascade;
create cast(time with time zone as integer) with function timezone_to_secondsinteger(time with time zone) as assignment;

--step3:创建哈希分区表;expect:建表成功
create table t_create_cast_0072 (col1 int, col2 int)
partition by hash(col1)
(
partition p1,
partition p2
);


--step4:隐含调用插入数据;expect:插入数据成功
insert into t_create_cast_0072 values(time with time zone '01:01:01 pst', 1651922190);
select * from t_create_cast_0072;

--step5:清理环境;expect:清理成功
drop cast if exists (time with time zone as integer) cascade;
drop function if exists timezone_to_secondsinteger(time with time zone) cascade;
drop table if exists t_create_cast_0072 cascade;

